/Engine/Source/Runtime/Engine/Public/SkeletalMeshDeformerHelpers.h
Release all of the the buffers that have been allocated through the AllocateVertexFactory*() functions. Reset all of the MeshObject's passthrough vertex factories.
static void ResetVertexFactoryBufferOverrides ( [FSkeletalMeshObject](API\Runtime\Engine\FSkeletalMeshObject) * InMeshObject, int32 InLodIndex )